Improvement is separating gold and silvee feom ores



E. BROWN.

Dry Amalgamator.

No. 59,955. PatgntedNov. 27. 1866.

Witnesses: I Inventor;

jLW/L 1 .4 M am M4 I ll. PHOTO-LITHQCQNX. (OSBURNE'S PROCESS.)

gutter tater; gaunt ffirn.

IMPROVEMENT IN ,SBPABATIN G GOLD AND SILVER FROM ORES.

SIPECIFICA'I'IOINZ.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, EDMUND BROWN, of the city of Chicago, county of Cook, and State of Illinois, have invented a new and useful Machine for Separating Gold and Silver from Quartz and I hereby declare the fol lowing to he a clear and exact description of the same, reference being had to the accompanying drawings i which form a part of this specification.

A is a kettle, of convenient depth and diameter to be placed in a properly constructed furnace. B B are hollow cylinders for receiving the quartz. D D are tubes for conducting. the quartz from the receivers into the bottom of the kettle. E E are pipes for conducting air into the receivers from. an air force-pump. E Fare cocks for stopping or continuing the pressure of air in the receivers. G G are cocks for discontinuing the pressure of air in the receivers. I I shows the position of two valves which close when the air pressure is applied.

The method of operating this machine is substantially as follows: The machine is first placed in a properly constructed furnace, an air force-pump attached to the pipe H, and the kettle A filled with lead and heated sufficiently for amalgamating. The receivers B B are then filled with quartz through the funnels C C, the cooks G G are closed and the cooks F F opened; the air force-pump attached to the pipe H is then set to work, which immediately creates a pressure in the receivers B B, closes the valves I I, and forces the quartz down through the tubes D D'into the hottom of the kettle A, where it comes in contact with the lead. After the quartz has been run out of the receivers B B the cocks G Gare opened, and-the air in the receiver allowed to escape, when the same operations are repeated.

What I claim, and desire to secure by Letters Patent, are-- 1. The application of compressed air for forcing the quartz down into the lead.

2. The'tubes D D, running down the outside of the kettle, allowing the quartz to become thoroughly heated and desulphurized; the whole combined and arranged for the purpose specified.

EDMUND BROWN.

'Witnesses ALEX. F. Srnvmzson, DANIEL SHEPARD. 

